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J. C. SIMMONS.

CARBURETER.

APPLICATION FILED MAR. 12. 1915.

Patented Aug. 8, 1916.

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INVENTOR Jesse 6. Sim/710175 A TTOR/VEYS J. C. SIMMONS.

CARBURETER.

APPLICATION FILED MAR. 8. 1915.

1 ,1 93,834. Patented Aug. 8, 1916.

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FE. III- WITNESSES. INVENTOR W770 Jesse 6, Sun/vans Wm WM ATTORNEYS EDSA il lAiiE OFFICE.

JESSE C. SIMMONS, OF SHELBY, MICHIGAN, ASSIGNOR OF ONE-HALF TO ALLEN B.WAY, OF GRAND RAPIDS, MICHIGAN.

' CARBURETER.

Application filed March 8, 1915.

To all whom it may concern:

Be it known that I, JEssE C. SIMMONS, a citizen of the United States,residing at Shelby, county of Oceana, and 'State of Michigan, haveinvented certain new and useful Improvements in Carbureters forInternal-Combustion Engines, of which the following is a specification.

This invention relates to improvements in carbureters for internalcombustion engines.

The objects of this invention are: First, to provide, in a carbureter,improved regulating means by which the mixture may be kept more uniform.Second, to provide an improved construction of carbureter in which theparts are rendered more accessible for the purpose of renewal andcleaning.

Further objects, and objects relating to details and economies ofconstruction and operation will definitely appear from the detaileddescription to follow.

I accomplish the objects of my invention by the devices and meansdescribed in the following specification.

The invention is clearly defined and pointed out in the claims.

A structure constituting a preferred embodiment of my invention isillustrated in the accompanying drawing forming a part of thisspecification, in which:

Figure I is a top plan view of a carbureter embodying my invention. Fig.II is a view in side elevation. Fig. III is an enlarged verticalsectional view on the line 3-3 of Fig. I. Fig. IV is an enlarged detailsectional view on the line 14 of Fig. III, showing in detail my improvedregulating means. Fig. V is a detail sectional view on the line 5-5 ofFig. IV. Fig. VI is a detail perspective view of the regulating sleeve31. Fig. VII is a detail sectional plan view on the irregular line 7-7of Fig. III.

In the drawings, similar reference characters refer to similar partsthroughout the several views, and the sectional views are taken lookingin the direction of the little arrows at the ends of the section lines.

Considering the numbered parts of the drawing, the body 1 of thecarbureter has Specification of Letters Patent.

Patented Aug. 8, 1916.

Serial No. 12,879.

formed therein an oil reservoir 11, an air chamber 21 and a carburetingchamber 21, the air chamber 21 communicating with an air inlet 2 inwhich is mounted a butterfly valve 3 for controlling the entrance ofair. The explosive mixture or gas passes out through the passage 40 inwhich is disposed the butterfly valve 5. The top of the reservoir 11 isclosed by the head 7 having screw threaded engagement with the body ofthe carbureter. Fuel is supplied through the supply pipe 6, which isthreaded into said head 7, communicating with the sleeve 8 threaded intothe head and provided with a passage therethrough. A float 12 isdisposed in the reservoir 11 and carries a spindle 13 which projectsbelow into a bore 15 formed in the base of the carbureter for guidingand supporting said spindle. Said spindle projects above the float andis fixed to a needle valve 14 which extends upwardly into and isslidably mounted in the head 7. This needle valve 14 carries a point 10which engages the valve seat 9 at the lower end of the sleeve 8 to closethe same. Grooves 10' are provided in the side of the needle valve 1 1by means of which when the valve drops down the fuel flows through saidgrooves into the reservoir 11. It will thus be seen that the fuel supplyis governed by the float 12, the rise and fall of which closes and opensthe valve 9. A pet cook 16 is provided for draining the fuel from thereservoir 11. The float chamber and feed means are shown in preferredform and other effective means may be substituted. A post 19 is mountedin the body of the carbureter and extends upwardly in said carburetingchamber 21*, being provided with a mushroom head 20 and with alongitudinally extending bore 39. A plug 24 is threaded into the upperpart of said bore 39, as shown in Fig. III, said plug being providedwith a central passage 26 and transversely extending passages 27, asclearly shown in Figs. III and V. The transversely extending passages 27are brought into alinement with the transversely extending passages 27in the post 19.

The needle valve 22 which is threaded in a stuffing box 23 carried bythe bottom of the carbureter extends upwardly within the bore 39 of thepost 19, as shown in Fig. III. The point 25 of said needle valve engagesthe lower end of the longitudinally extending passage 26 in the plug 24to close the same. The diameter of the upper portion of the valve stem22 is less than that of the bore 39 so that a passage is left betweenthe walls of said bore and said valve stem. A passage 17 connects thebottom of the fuel reservoir 11 with a chamber 18 through which thevalve stem 22 passes. The fuel is forced by the pressure of the fuel inthe reservoir 11 through said passage 17 and chamber 18 and upwardly inthe bore 39, thence through the passage 26 and transversely extendingpassages 27 and 27 to the exterior of the post 19.

A sleeve 30 has a drive fit on the lower part of the post 19, as shownin Figs. III and IV. An annular groove 28 is formed in said post 19 at apoint where the passages 27 terminate. The post 19 is slightly reducedin diameter above said groove, as at 29, so that there is a slightclearance between the Wall of the sleeve 30 and the portion 29 of thepost 19. The top of the sleeve 30 extends upwardly so that there isabout the same clearance between it and the mushroom head 20 of the post19. The carbureting chamber 21 has a contracted air intake portionformed by the rib 33. The regulating sleeve 31 having at its upper endan angularly extending flange 32 is disposed in said contracted intakeportion of the carbureting chamber 21 with said flange normally restingupon and supported by the projecting rib 33. The regulating sleeve 31 isprovided with inwardly extending ribs 34 which engage the sleeve 30 onpost 19 in order to properly center and guide the regulating sleeve 31.

The head 4 containing the discharge passage 40 is secured to the top ofthe carburcter body over the carbureting chamber by means of the screws38, said head being provided with a curved annular groove 36 in itslower surface. The wall of the discharge passage has a downwardlyprojecting flange 37, as clearly shown in Fig. III.

From the description of the parts given above, the operation of mydevice should be very readily understood. Fuel is admitted from the fuelreservoir 11 through the passage 17 and past the needle valve 25 intothe longitudinal passage 26 and the transverse passages 27 and 27, saidfuel oozing out between the top of the sleeve 30 and the portion 29 ofthe post 19. The fuel is forced out in a thin film and the air whichenters at 2 rushes up between the sleeve 30 and the regulating sleeve 31and, acting upon said film of oil, vaporizes the same and the mixturepasses out through the discharge passage. When the engine has beenstarted and demands more gas there is apt to be too much fuel sucked inthrough the fuel supply in proportion to the air which is admitted tovaporize the same with the result that too rich a mixture will beformed. To prevent this I have provided the regulating sleeve 31 whichrests lightly upon the rib 33 and when the suction increases as more gasis demanded, said regulating sleeve 31 will be lifted by the enteringair so as to permit air to pass up around the outside of said sleeve 31so that the mixture is diluted with this fresh air which has not comeinto so intimate a contact with the film of fuel. Any particles of oilwhich are carried up without being vaporized will be caught by thegroove 36 in the lower surface of the head 4 so that the oil will eitherbe completely vaporized or returned into the lower part of thecarbureting chamber where it will be met by the air rushing upwardly andthus completely vaporized.

The supply of fuel can be regulated by means of the needle valve 22. Theentrance of fuel to reservoir 11 is automatically controlled by thefloat 12. The rise and fall of said float automatically closes 0r opensthe valve 9 to control the supply of fuel to the fuel reservoir 11. Theparts of this valve are easily removable by removing the head 7 and areeasily accessible for purposes of cleaning and renewal.

I am aware that the particular embodiment of my invention which I havehere shown is susceptible of considerable variation without departingfrom the spirit of my invention and, therefore, I do not wish to berestricted to the same. I have found, however, that this form is tobepreferred and, therefore, I desire to claim the same specifically, aswell as broadly, as indicated by my appended claims.

aving thus described my invention, what I claim as new and desire tosecure by Letters Patent is:

1. In a carbureter, the combination of a carburetor body having a fuelreservoir and a carbureting chamber, the wall of said carbureter chamberbeing provided with an annularly projecting rib forming an air intakecontracted portion; a post disposed within said carbureting chamber andhaving a mushroom head and a bore extending longitudinally thereof; aplug threaded into the upper portion of said bore and provided withtransverse passages and a longitudinal passage communicating with saidtransverse passages; a needle valve stem adjustably carried by saidcarbureter body and extending into the bore of said post, said valvestem being of smaller diameter than said bore, the upper end of saidvalve stem engaging the lower end of said plug to close the centralpassage therein, said post being provided with transverse passages inline with the transverse passages of said block; an annular groove inwhich said passages terminate and a reduced portion above said groove; asleeve on said post the upper end of said sleeve being spaced slightlyfrom said reduced portion and said mushroom head; a regulating sleevesurrounding said post and having an angularly extending flange restingon the rib of said carbureter wall; ribs extending from the inner wallof said regulating sleeve and engaging the sleeve on said post to guideand support the regulating sleeve; connections from said fuel reservoirto the longitudinal bore in said post; and a head closing the top ofsaid carbureting chamber and having a discharge passage, the wall ofsaid discharge passage terminating in a downwardly extending flange, thelower surface of said head being provided with an annular groovedisposed above said carbureting chamber.

2. In a carbureter, the combination of a carbureter body having a fuelreservoir and a carbureting chamber, the wall of said carbureter chamberbeing provided with an an nularly projecting rib forming an air intakecontracted portion; a post disposed within said carbureting chamber andhaving a mushroom head and a bore extending longitudinally thereof; aplug threaded into the upper portion of said bore and provided withtransverse passages and a longitudinal passage communicating with saidtransverse passages; a needle valve stem adjustably carried by saidcarbureter body and extending into the bore of said post, said valvestem being of smaller diameter than said bore, the upper end of saidvalve stem engaging the lower end of said plug to close the centralpassage therein, said post being provided with transverse passages inline with the transverse passages of said block; an annular groove inwhich said passages terminate and a reduced portion above said groove; asleeve on said post, the upper end of said sleeve being spaced slightlyfrom said reduced portion and said mushroom head; a regulating sleevesurrounding said post and having an angularly extending flange restingon the rib of said carbureter wall; ribs extending from the inner wallof said regulating sleeve and engaging the sleeve on said post to guideand support the regulating sleeve; connections from said fuel reservoirto the longitudinal bore in said post; and a head closing the top ofsaid carbureting chamber and having a discharge passage, the lowersurface of said head being provided with an annular groove disposedabove said carbureting chamber.

3. In a carbureter, the combination of a carbureter body having a fuelreservoir and a carbureting chamber, the wall of said car buretingchamber being provided with an annularly pro ecting rib forming an airintake contracted portion; a post disposed within said carburetingchamber and having a mushroom head and a bore extending longitudinallythereof; a plug threaded into the upper portion of said bore andprovided with transverse passages and a longitudinal passagecommunicating with said transverse passages; a needle valve stemadjustably carried by said carbureter body, and extending into the boreof said post, said valve stem being of smaller diameter than said bore,the upper end of said valve stem engaging the lower end of said plug toclose the central passage therein, said post being provided withtransverse passages in line with the transverse passages of said block;an annular groove in which said passages terminate and a reduced portionabove said groove; a sleeve on said post, the upper end of said sleevebeing spaced slightly from said reduced portion and said mushroom head;a regulating sleeve surrounding said post and having an angularlyextending flange resting on the rib of said carbureter wall; ribsextending from the inner wall of said regulating sleeve and engaging thesleeve on said post to guide and support the regulating sleeve; andconnections from said fuel reservoir to the longitudinal bore in saidpost.

4. In a carbureter, the combination of a carbureter body having a fuelreservoir and a carbureting chamber, the wall of said carbureter chamberbeing provided with an annularly projecting rib forming a contractedportion; a post disposed within said carbureting chamber and having amushroom head and a bore extending longitudinally thereof; a plugthreaded into the upper portion of said bore and provided withtransverse passages and a longitudinal passage communicating with saidtransverse passages; a needle valve stem adjustably carried by saidcarbureter body and extending into the bore of said post, said valvestem being of smaller diameter than said bore, the upper end of saidvalve stem engaging the lower end of said plug to close the centralpassage therein, said post being provided with transverse passages inline with the transverse passages of said block; an annular groove inWhich said passages terminate and a reduced portion above said groove; asleeve on said post, the upper end of said sleeve being spaced slightlyfrom said reduced portion and said mushroom head; a regulating sleevesurrounding said post and having an angularly extending flange restingon the rib of said carbureter wall; and connections from said fuelreservoir to the longitudinal bore in said post.

5. In a carbureter, the combination of a carbureter body having a fuelreservoir and a carbureting chamber, a post disposed within saidcarbureting chamber and having a mushroom head and a bore extendinglongitudinally thereof; a plug threaded into the upper portion of saidbore and provided with transverse passages and a longitudinal passagecommunicating with said transverse passages; a needle valve stemadjustably carried by said carbureter body and extending into the boreof said post, said valve stem being of smaller diameter than said bore,the upper end of said valve stem engaging the lower end of said plug toclose the central passage therein; said post being provided withtransverse passages in line with the transverse passages of said block;an annular groove in which said passages terminate and a reduced portionabove said groove; a sleeve on said post, the upper end of said sleevebeing spaced slightly from said reduced portion and said mushroom head;and connections from said fuel reservoir to the longitudinal bore insaid post.

6. In a carbureter, the combination of a carbureter body having a fuelreservoir and a carbureting chamber therein, the wall of saidcarbureting chamber being provided with a projecting rib forming acontracted portion; a post disposed Within said carbureting chamber andhaving a mushroom head and a bore extending longitudinally thereof; aplug threaded into the upper portion of said bore and provided withtransverse passages and a longitudinal passage communicating with saidtransverse passages; a needle valve stem adjustably carried by saidcarbureter body and extending into the bore of said post, said valvestem being of smaller diameter than said bore, the upper end of saidvalve stem engaging the lower end of said plug to close the centralpassage therein; said post being provided with transverse passages inline with the transverse passages of the plug andwith a reduced portionin which said passages terminate; a sleeve on said post, the upper endof said sleeve being spaced slightly from said reduced portion and saidmushroom head; a regulating sleeve surrounding said post and having anangularly extending flange resting on the rib of said carbureter wall;ribs extending from the inner Wall of said regulating sleeve andengaging the sleeve on said post to guide and support the regulatingsleeve; and connections from said fuel reservoir to the longitudinalbore in said post, all coacting substantially as described and for thepurpose specified.

7. In a carbureter, the combination of a carbureter body having a fuelreservoir and a carbureting chamber therein, the wall of saidcarbureting chamber being provided with a projecting rib forming acontracted portion; a post disposed within said carbureting chamber andhaving a mushroom head and a bore extending longitudinally thereof; aplug threaded into the upper portion of said bore and provided Withtransverse passages and a longitudinal passage communicating with saidtransverse passage; a needle valve stem adjustably carried by saidcarbureter body and extending into the bore of said post, said valvestem being of smaller diameter than said bore, the upper end of saidvalve stem engaging the lower end of said plug to close the centralpassage therein; said post being provided with transverse passages inline with the transverse passages of the plug and with a reduced portionin which said passages terminate; a sleeve on said post, the upper endof said sleeve being spaced slightly from said reduced portion and saidmushroom head; a regulating sleeve surrounding said post and having anangularly extending flange resting on the rib of said carbureter wall;and connections from said fuel reservoir to the longitudinal bore insaid post, all coacting substantially as described and for the purposespecified.

8. In a carbureter, the combination of a carbureter body having a fuelreservoir and a carbureting chamber therein; a post disposed within saidcarbureting chamber and having a mushroom head and a bore extendinglongitudinally thereof; a plug threaded into the upper portion of saidbore and provided with transverse passages and a longitudinal passagecommunicating with said transverse passage; a needle valve stemadjustably carried by said carbureter body and extending into the boreof said post, said valve stem being of smaller diameter than said bore,the upper end of said valve stem engaging the lower end of said plug toclose the central passage therein; said post being provided withtransverse passages in line with the transverse passages of the plug andwith a reduced portion in Which said passages terminate; a sleeve onsaid post, the upper end of said sleeve being spaced slightly from saidreduced portion and said mushroom head; and connections from said fuelreservoir to the longitudinal bore in said post, all coactingsubstantially as described and for the purpose specified.

9. In a carbureter, the combination of a carbureter body having a fuelreservoir and a carbureting chamber therein, the wall of saidcarbureting chamber being provided with a projecting rib forming acontracted portion; a post disposed within said carbureting chamber andhaving a mushroom head and a bore extending longitudinally thereof; aplug threaded into the upper portion of said bore and provided with alongitudinal passage and transverse passages communicating therewith;transverse passages in said post in line with said passages; connectionsfrom said fuel reservoir to the longitudinal bore in said post; valvemeans for closing the communication between said longitudinal bore andsaid carbureting chamber; a sleeve on said post, the upper end of saidsleeve being spaced slightly from said post and said mushroom head; aregulating sleeve surrounding said post and having an angularlyextending flange resting on the rib of said carbureter wall; and ribsextending from the inner wall of said regulating sleeve and engaging thesleeve on said post to guide said regulating sleeve; all coactingsubstantially as described and for the purpose specified.

10. In a carbureter, the combination of a carbureter body having a fuelreservoir and a carbureting chamber therein, the wall of saidcarbureting chamber being provided with a projecting rib forming acontracted portion; a post disposed within said carbureting chamber andhaving a mushroom head and a bore extending longitudinally thereof; aplug threaded into the upper portion of said bore and provided with alongitudinal passage and transverse passages communicating therewith;transverse passages in said post in line with said passages; connectionsfrom said fuel reservoir to the longitudinal bore in said post; valvemeans for closing the communication between said longitudinal bore andsaid carbureting chamber; a sleeve on said post, the upper end of saidsleeve being spaced slightly from said post and said mushroom head; aregulating sleeve surrounding said post and having an angularlyextending flange resting on the rib of said carbureter wall; allcoacting substantially as described and for the purpose specified.

11. In a carbureter, the combination of a carbureter body having a fuelreservoir and a carbureting chamber therein; a post disposed within saidcarbureting chamber and having a mushroom head and bore extend inglongitudinally thereof; a plug threaded into the upper portion of saidbore and provided with a longitudinal passage and transverse passagescommunicating therewith; transverse passages in said post in line withsaid passages; connections from said fuel reservoir to the longitudinalbore in said post; valve means for closing the communi cation betweensaid longitudinal bore and said carbureting chamber; a sleeve on saidpost, the upper end of said sleeve being spaced slightly from said postand said mushroom head; all coacting substantially as described and forthe purpose specified.

12. In a carbureter, the combination of a carbureter body having a fuelreservoir and a carbureting chamber therein, the Wall of saidcarbureting chamber being provided with a. projecting rib forming acontracted portion; a post disposed within said carbureting chamber andhaving a mushroom head and a bore extending longitudinally thereof;passages connecting said bore with said carbureting chamber; connectionsfrom said fuel reservoir to the longitudinal bore in said post; valvemeans for closing communication between said longitudinal bore and saidcarbureting chamber; a sleeve on said post, the upper end thereof beingspaced slightly from said post and said mushroom head; and a regulatingsleeve surrounding said post and having an angularly extending flangeresting on the rib of said carbui'ctcr wall; all coacting substantiallyas described and for the purpose specified.

13. In a carbureter, the combination of a carbureter body having a fuelreservoir and a carbureting chamber therein; a fixed post disposedwithin said carbureting chamber having a mushroom head extendingradially beyond the coacting parts and having a bore extendinglongitudinally thereof; passages connecting said bore with saidcarbureting chamber beneath said mushoom head; connections from saidfuel reservoir to the longitudinal bore in said post; valve means forclosing communication between said longitudinal bore and saidcarbureting chamber; a sleeve on' said post, the upper end thereof beingspaced slightly from said post; all coacting substantially as describedand for the purpose specified.

14. In a carbureter, the combination of a carbureter body having a fuelreservoir and a carbureting chamber therein, the wall of saidcarbureting chamber being provided with a projecting rib forming acontracted portion; a post disposed within said carbureting chamber;means carried by said post for discharging a thin film of oil into saidcarbureting chamber; a regulating sleeve surrounding said post andhaving an angularly extending flange resting on the rib of saidcarbureter Wall; and ribs extending from the inner wall of saidregulating sleeve and engaging said post to guide said regulatingsleeve; all coacting substantially as described and for the purposespecified.

15. In a carbureter, the combination of a carbureter body having a fuelreservoir and a carbureting chamber therein, the Wall of saidcarbureting chamber being provided with a projecting rib forming acontracted portion: a post disposed within said carbureting chamber;means carried by said post for discharging a thin film of oil into saidcarbureting chamber; a regulating sleeve surrounding said post andhaving an angularly extending flange resting on the rib of saidcarbureter wall: all coacting substantially as described and for thepurpose specified.

16. In a carbureter, the combination of a carbureter body, having acarbureting chamber therein; means disposed within said carburetingchamber for discharging a thin film of oil; a head disposed over saidcarbureting chamber and having a discharge passage therein, the lowersurface of said head my hand and seal in the presence of two beingprovided With an annular groove Witnesses. around the opening to saiddischarge passage, coacting substantially as described and 5 for thepurpose specified.

In Witness whereof, I have hereunto set Witnesses LYLE WI Copies of thispatent may be obtained for five cents each, by addressin Washington, D.C.

JESSE o. SIMMONS. [L.s.]

ALBERT S. HINDS.

g the Commissioner of Patents,

